I am sorry. I know it hurts. Broken people seek out other broken people. In MLC they are not going to attract healthy relationships: neither on the platonic nor the romantic front.
Hold your head up high and square your shoulders. Be thankful you don't have to live with the guilt of doing that.
Keep the focus on you. Leave her to figure things out herself.
Me 41, H 47, M 15 yrs, S11, S13 BD 1: 11/4/14 we work on it; really I pretzel myself BD 2: 3/31/15 H goes down to "dorm room" 8/15: H back to MBR 10/15: H back in dorm room 1/18: H files, now divorced